Time-controlled valve mechanism.



TIME CONTROLLED VALVE i'vlECHANiSM.y APPLlcATioM min DEc.11. 191|.

Patented Dm 4, 19W.

2 SHEETS-SHEET @L l@ lll annu/Lto@ H. Y. NORWO.

TIIVIE CONTROLLED VALVE MECHANISIVI. APPLICATION FILED DEC. II. I:Ifz

Patented Dea. 4, w1?.

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' t: r. Rowoon, or ROCHESTER, REW YORK, essie-ROR, :BrrrEsnE assiem- ENTS, '.llO IIEI. & lill-I. AUTOMTIU REGULATOR COMPANY, vQF ROCHESTER', NEW

E-'eornrRomm3` vaLvE mEeHAnrsrr.

lepeeiliication of Letters Patent.

.raeeatea nee. a, rer

appncaunn meu recember 11, ien. serial Re. cual I To all whence# may concern:

, Beit Vknown that ll, HARRY Y. Nonwoon of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Time-Controlled Valvedtllechanisms; and ll do hereby declare the following to be a full, clear, and

exact description of the same, reference being had to the accompanying drawings,

.end of such period. A further object of \my invention is to enable this end to be attained by means of a valve, suitably controlled by fluid pressure which is automatically regulated by a time mechanism. Another object 4of my invention is the provision of a novel arrangement of p'arts whereby a time mechanism may readily be set to permit the supply of Huid to the receiver for, any desired ength of time. To these and other ends the invention consistsiin certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the 'claimsat the end ofthe specication.

ylln the drawings:

lFigure 1 is aview in elevation .of one embodiment of my invention, as applied to a time controlled valve mechanism or admitting steam to a vulcanizer, the steamv controlling valve casing and pressure chamber appearing in section;

lFig. 2 is a viewin elevation ofthe time lmechanism and casing therefor, the .cover of the latter being removed;

Fig. 3 is a vertlcal sectional viewv on the line m--w of Fig. 2; p

lFigAis a horizontal sectional view on the i line y-y of Fig. 3, and

lhill llig. 5 is a vertical sectional view on the Similar reference numerals throughout the' several gures indicate they same parts. While themvention is susceptible of application wherever steam, or a similar Huid, is to be supplied to a receiver `for a predetermined period, at the end of which it is automatically cut od', the present embodiment illustrates the invention in connection with a vulcanizing apparatus embodying a retort 1 from whlcha pipe 2 leads to the valve casin 3, the latter being connected by ports 4 an 5 to the inlet and exhaust pipes 6 and 7, respectively. rllhe 'valve which is designated at 8, is arranged to be operated by a time controlled pressure actuated means, and to this end is carried by a valve rod 9, which extends upwardly within a chamber 10 and is suitably connected at the top of .the chamber to a diaphragm 11, a

vspring 12 being adorded between said diaphragm vand the valve casing whereby the valve is held upwardly in the position' shown in Fig. l, when the diaphragm chamber isv relieved from pressure, as will be pointed out hereinafter.

The valve is arranged to be controlled by a suitable fluid vunder pressure, preferably compressed air, and to this end a pipe 13 leads from a suitable source of supply to the time controlling mechanism contained within the casing 14, from which a pipe 15 leads to the diaphragm-chamber 10.

Arranged within the casing 14 is a twoway valve, adapted in one positionl to connect the compressed air supplypipe with the diaphragmchamber 10 so as to exert pressure on the diaphragm 11, and in its other position to cut on the supply of compressed air and connect the chamber 10 with the atmosphere so as to relieve the diaphragm 11 of pressure. To this end, ll provide a conical valve 16 arranged within the casing 17 and held in proper operative relation thereto by means` of the spring 18. The valve is provided with ports 19 and 20, the port 19 serving to connect the compressed air supply with the chamber 10 through pipes 21 and 22, respectively,and the' port 2O serving to connect-said chamber with the atmosphere through the pipe 23. lln the position shown in Fig. 4, the compressed air supply is cubed and the chamber 10 is connected to the atmosphere through` port 20, and when the valve is rotated to reverse the position of the ports, the atmos heric outlet is closed and rassure is admitted to the chamber. rfhe vpipes 22 and 23 are both connected to the chamber 10 through a cylindrical casing 24 to which they lead; and which in turn, is connected to the pipe 15 through a ipe 25. he valve 16 kis provided with .an upwardly extending angular stem 26 by which it may be turned by a suitable key, for a purpose presently to be made clear, and fixedly i ving to hold the/valve normally in the posimounted on said stem is a lock plate 27, provided with a notch, or cutaway portion 28, and carrying a pin ,29 to which is connected the spring 30, the latter being suitably secured to a stationary part and servtion shown in Fig. 2, in which position the compressed air is admitted to the chamber now be described. Pivotally arranged in coperative relation to the lock plate 27 is a detent 32 adapted to engage the notch 28 and hold the valve against the action of the spring 30. The timemechanism includes an arbor 33 on which is ixedly mounted a disk 34:` carrying a projection 35 adapted to engage the detent 32 and move the latter away 'from engagement with the lock plate, the

detent'being mounted on a post 36 and held 4in engaging position by a spring 37. Loosely mounted on the arbor 33 is a pinion 38 forming a part of the time mechanism, and arranged between the pinion 38 and the disk 34 is a spring plate 39 by which said pinion is frictionall engaged with the disk 3s and with the ar or 33. This connection permits the arbor to be turned, so as to set vthe time mechanism for an y desired period of time, and to this end it 1s provided with an `angular portion 40 at its upper end arranged to be engaged by a key, and carries an indicator 41 coperating with the indicating scale 42 o'n the cover of the casing.

In the operation of the mechanism, under normal conditions, the valve 16 is turned so as to admit compressed air Jto the upper side of the diaphragm 11, and-tohold the 'valve 8 in osition to permit the. exhaust of the steam rom the retort. When it is deslred to close the exhaust,fto supply steam to .the retort, the arbor 33 of the. tlme mechanism 1s turned by a key until-the indicator points to the desired period of time for which steam is to be admitted. `\Atthe same time the valve 16 is turned by a suitable key until the detent 32 engages the notch 28 of the lock-plate. In this position of the arts, the compressed ai'r supply is cut off from the diaphragm 11, the upper portion of the diaphragm-chamber being exhausted to the atmosphere, and the valve 8 assumes the position shown in Fig. 1 under the action of the spring 12, thereby-closing the exhaust from the retort and opening the inlet to permit the entrance of steam. This continues until the time mechanism brings the projection 35 into engagement With the dctent 32,' whereupon the lock-plate y27 is released, and the valve 16 is moved to its normal position by the spring 30. This permits the compressed air to again enter the chamber 10, whereby the valve 8 is moved to close the inlet and open the exhaust.

While I have described my invention With reference to a particular embodiment, it is to be understood that I am not limited to the exact construction and arrangement of arts herein disclosed, for I intendto cover y this application any modifications or departures as may come within the terms of the claims hereinafter.

I claim as my invention: 1. The combination With a heating or vulcanizing chamber and means for supplying heating fluid to it, of a valve controlling the p passage of heating fluid to the heating chamer, pressure means acting independently of the pressure within the chamber for operating said valve and embodying a supplemental fluid pressure pipe, a second valve controlling the supplemental fluid pressure, a ring controlling the second valve, and a loc ng device acting to hold the latter valve against the action of the spring.

2.` The combination with a heating or vulcanizing chamber and means for supplying heating f iuid to it, of` a valve movable to two positions and acting when in one position to admit heating fluid to said chamber and in its other position to relieve the pressure within said chamber, of means controlled by fluid pressure independently of the pressure within the chamber for actuating said valve and embodying a supplemental pressure pipe, a second valve controlling the supplemental pressure within the last mentioned pipe, a spring actuating the latter valve ih one direction, and alocking device acting to hold the latter valve against action of the spring.

HARRY Y. NORWOOD. Witnesses:

JOHN S. BRONK, G. WILLARD RICH. 

